CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 142,985	$ 112,392	$ 105,361
OTHER COMPREHENSIVE INCOME, BEFORE TAX:
Currency translation adjustment	432	(825)	(380)
Reclassification adjustment for losses included in net income		776	2,518
Other Comprehensive Income (Loss), before Tax, Total	432	(49)	2,138
TAX ATTRIBUTES OF ITEMS IN OTHER COMPREHENSIVE INCOME:
Currency translation adjustment	(30)	359	(842)
Reclassification adjustment for losses included in net income		(295)	(957)
Other Comprehensive Income (Loss), Tax	(30)	64	(1,799)
OTHER COMPREHENSIVE INCOME, NET OF TAX	402	15	339
COMPREHENSIVE INCOME	$ 143,387	$ 112,407	$ 105,700